Question

Why is convection faster than conduction?

Answer 1

The molecules of a hotter material move faster and therefore have higher kinetic energy than the molecules of a cooler material. Convection can be many times faster than conduction

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Answer 2

Answer:

The molecules of a hotter material move faster and therefore have higher kinetic energy than the molecules of a cooler material. When molecules collide with slower neighboring molecules, kinetic energy is transferred from one molecule to another. The rate of heat transfer is high for metals (which, therefore, are said to have higher conductivity) and quite low for gases like air